The performance of the ones pictures is equivalent to the Auralex ones, but made to look nicer for WAF. I intend these 'Essence' traps more for midrange and upper-bass. ...when I bring them out, for now funds only allow me to launch the other 2 products.
What ya need is a decent bass trap like the RPG Modex. My version is the 'Confidence' as on my website. They are just less than 4ft tall so you can stack them. Compared to foam type bass traps they are vastly superior, but performance drops above 110Hz as they work on pressure, not incidental sound. They work down to about 50Hz (like the RPG's). Contrary to Auralex's claims their foam traps will only work reasonably well down to about 80Hz.
I have a pair you can take for a test drive in a few weeks if you like, either pick them up for pay postage. I have to keep them at the moment though so I can check packaging samples fit when they EVENTUALLY arrive!
On the other hand you could wait a month or two and demo a pair or even better a quad from Sounds of Music.